<section class="bsvhero-section">
  <div class="container py-5 text-center">
    <span class="badge rounded-pill bsvhero-badge mb-3">Product tour</span>
    <h1 class="bsvhero-title">See it in action</h1>
    <p class="bsvhero-sub mb-4">A 90-second walkthrough of the whole workflow, start to finish.</p>

    <div class="bsvhero-frame mx-auto" id="bsvheroFrame">
      <div class="bsvhero-cover" id="bsvheroCover">
        <button class="bsvhero-play" id="bsvheroPlay" aria-label="Play video">
          <svg width="22" height="22" viewBox="0 0 24 24" fill="currentColor"><path d="M8 5v14l11-7z"/></svg>
        </button>
        <span class="bsvhero-duration">1:32</span>
      </div>
      <div class="bsvhero-playing d-none" id="bsvheroPlaying">
        <div class="bsvhero-progress"><div class="bsvhero-progress-bar" id="bsvheroBar"></div></div>
        <span class="small">Playing demo…</span>
        <button class="btn btn-sm btn-light mt-2" id="bsvheroReset">Reset</button>
      </div>
    </div>
  </div>
</section>

body { margin: 0; }
.bsvhero-section { background: linear-gradient(180deg, #0f172a, #1e293b); color: #fff; }
.bsvhero-badge { background: rgba(255,255,255,.12); color: #fff; font-size: 12px; }
.bsvhero-title { font-weight: 800; letter-spacing: -0.02em; font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.4rem); }
.bsvhero-sub { color: rgba(255,255,255,.7); max-width: 460px; margin-inline: auto; }

.bsvhero-frame {
  max-width: 640px;
  aspect-ratio: 16/9;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #334155, #1e293b);
  box-shadow: 0 30px 60px rgba(0,0,0,.4);
}

.bsvhero-cover { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.bsvhero-play {
  width: 62px; height: 62px; border-radius: 50%;
  border: none; background: #fff; color: #0f172a;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: transform .15s;
}
.bsvhero-play:hover { transform: scale(1.08); }
.bsvhero-duration { position: absolute; bottom: 12px; right: 14px; font-size: 12px; background: rgba(0,0,0,.5); padding: 2px 8px; border-radius: 6px; }

.bsvhero-playing {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
}
.bsvhero-progress { width: 70%; height: 4px; background: rgba(255,255,255,.2); border-radius: 4px; overflow: hidden; }
.bsvhero-progress-bar { height: 100%; width: 0%; background: #6366f1; transition: width .1s linear; }

const cover = document.getElementById('bsvheroCover');
const playing = document.getElementById('bsvheroPlaying');
const playBtn = document.getElementById('bsvheroPlay');
const resetBtn = document.getElementById('bsvheroReset');
const bar = document.getElementById('bsvheroBar');
let timer = null;

playBtn.addEventListener('click', () => {
  cover.classList.add('d-none');
  playing.classList.remove('d-none');
  let pct = 0;
  bar.style.width = '0%';
  timer = setInterval(() => {
    pct += 2;
    bar.style.width = Math.min(100, pct) + '%';
    if (pct >= 100) clearInterval(timer);
  }, 100);
});

resetBtn.addEventListener('click', () => {
  clearInterval(timer);
  playing.classList.add('d-none');
  cover.classList.remove('d-none');
  bar.style.width = '0%';
});